13425518 has 8 divisors (see below), whose sum is σ = 20165112. Its totient is φ = 6703816.

The previous prime is 13425481. The next prime is 13425539. The reversal of 13425518 is 81552431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2405 + ... + 5712.

It is an arithmetic number, because the mean of its divisors is an integer number (2520639).

Almost surely, 2^13425518 is an apocalyptic number.

13425518 is a deficient number, since it is larger than the sum of its proper divisors (6739594).

13425518 is an equidigital number, since it uses as much as digits as its factorization.

13425518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8946.

The product of its digits is 4800, while the sum is 29.

The square root of 13425518 is about 3664.0848789295. The cubic root of 13425518 is about 237.6714507156.

Adding to 13425518 its reverse (81552431), we get a palindrome (94977949).

It can be divided in two parts, 134 and 25518, that added together give a palindrome (25652).

The spelling of 13425518 in words is "thirteen million, four hundred twenty-five thousand, five hundred eighteen".